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Quick optimisation - detect case of glBufferData just to orphan

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This commit is contained in:
Baldur Karlsson
2014-06-24 15:57:45 +01:00
parent 47ed54fa91
commit dcf243ad63
1 changed files with 22 additions and 0 deletions
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renderdoc/driver/gl/wrappers/gl_buffer_funcs.cpp
+22
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@@ -330,6 +330,16 @@ void WrappedOpenGL::glNamedBufferDataEXT(GLuint buffer, GLsizeiptr size, const v
{
GLResourceRecord *record = GetResourceManager()->GetResourceRecord(BufferRes(buffer));
RDCASSERT(record);
// detect buffer orphaning and just update backing store
if(m_State == WRITING_IDLE && record->GetDataPtr() != NULL && size == record->Length && usage == record->usage)
{
if(data)
memcpy(record->GetDataPtr(), data, (size_t)size);
else
memset(record->GetDataPtr(), 0xbe, (size_t)size);
return;
}
SCOPED_SERIALISE_CONTEXT(BUFFERDATA);
Serialise_glNamedBufferDataEXT(buffer, size, data, usage);
@@ -345,6 +355,7 @@ void WrappedOpenGL::glNamedBufferDataEXT(GLuint buffer, GLsizeiptr size, const v
record->AddChunk(chunk);
record->SetDataPtr(chunk->GetData());
record->Length = (int32_t)size;
record->usage = usage;
}
}
}
@@ -360,6 +371,16 @@ void WrappedOpenGL::glBufferData(GLenum target, GLsizeiptr size, const void *dat
GLResourceRecord *record = m_BufferRecord[BufferIdx(target)];
RDCASSERT(record);
// detect buffer orphaning and just update backing store
if(m_State == WRITING_IDLE && record->GetDataPtr() != NULL && size == record->Length && usage == record->usage)
{
if(data)
memcpy(record->GetDataPtr(), data, (size_t)size);
else
memset(record->GetDataPtr(), 0xbe, (size_t)size);
return;
}
SCOPED_SERIALISE_CONTEXT(BUFFERDATA);
Serialise_glNamedBufferDataEXT(GetResourceManager()->GetCurrentResource(record->GetResourceID()).name,
size, data, usage);
@@ -375,6 +396,7 @@ void WrappedOpenGL::glBufferData(GLenum target, GLsizeiptr size, const void *dat
record->AddChunk(chunk);
record->SetDataPtr(chunk->GetData());
record->Length = (int32_t)size;
record->usage = usage;
}
}
}